Home / 2,643.11-3,945.38-2,450.39

Finding the Fourth Proportional to 2,643.11, 3,945.38 and 2,450.39

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Solution

The fourth proportional to 2,643.11, 3,945.38 and 2,450.39 is: 3,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.11 : 3,945.38 = 2,450.39 : x
  2. Step 2: Convert to fraction form
    2,643.11/3,945.38 = 2,450.39/x
  3. Step 3: Cross multiply
    2,643.11x = 3,945.38 × 2,450.39
  4. Step 4: Simplify right side
    2,643.11x = 9,667,687.72
  5. Step 5: Solve for x
    x = 9,667,687.72/2,643.11
  6. Step 6: Final answer
    x = 3,657.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.